TT-1S1M is a DIN rail mount programmable 2-wire loop powered isolated signal transmitter. It converts input signal into a scalable linear 4~20mA analog output current.
The Microprocessor based designed make it flexible to accept various input signals including mV, V, mA, PT100 and 9 different thermocouples.
Easy configuration without external loop power connected.
The measuring unit and range can also be configured via a user-friendly software from a PC.
Fault signal on sensor break presettable.
* Factory setting
Table 1
Accuracy is not guaranteed between 0 and 400C (0 and 752F) for type B, R and S.
Range set by an internal DIP switch, see Table 2.
Input signal: User programmable. refer to table 1.
Thermocouple (T/C): industry standard thermocouple
types, J, K, T, E, B, R, S, N, C (ITS-90).
Pt100: Excitation 180uA. 2 or 3 wire connection (ITS-90 =0.00385).
Common mode rejection ratio: >80dB.
Galvanic isolation: 2800 Vrms. between input and output
Operating temperature: 0 to 55C
Humidity: 0 to 90% RH
Electromagnetic compatibility (EMC): En 50081-2, En 50082-2
Dimension: shown in Figure 1.
Voltage: -60mVdc to 60mVdc or -10Vdc to 10Vdc.
Housing material: ABS plastic. UL 94V0
Current: 0mA to 24mA
Weight: 65g
Measuring range: User programmable. Max. range see table 1.
Measuring accuracy: Refer to Table 1. The accuracy is tested
CASE DIMENSIONS
under the operating condition of 24C3C.
Input sampling rate: 200mS.
Input current required: 3.8mA Current limit: 23mA
Output signal: Analogue 4 to 20mA, 20 to 4mA.
Output resolution: 0.6uA.
Output response time: <200mS.
Load: Max. (VPower supply - 10 V) / 0.020
Power supply: 12 to 36 V, internal protection against polarity inversion.
Figure 1
Page 1
RTD
Voltage
Current
Figure 2. Terminal connections
Wiring Specification:
Screw tightening torque: 4.3 lb-in, Wire range: 12~30 AWG.
Wire strip length: 6~7mm
TT-1S1M transmitter is user configurable with the user-frendly TT Configurator software and URC-1020 interface cable. The lastest version can be download free from www.texmate.com.
The URC-1020 Interface cable consist of interface converter and USB plug. It can be purchased separately. During configuration the transmitter can work alone with or without connecting to a power source.
Wiring Precaution:
1. Always keep signal wires away from power or contactor wires.
2. The power supply of TT-1S1M should not be shared with contactors, electrical motor and other inductive devices.
The various input signals are divided into three groups.
1. TC/RTD/mV: Thermocouple type (J, K, T, E, B, R, S, N, C), Pt100 and voltage input in the range of -60mVdc~60mVdc.
2. Current: 0~24 mA.
3. Voltage: -10~10Vdc.
For the three different groups of input signal type, An internal DIP switch SW1 should be set according to the Table 2.
*Factory Setting
Table 2.
Internal DIP switch setting
Mounting
Removing
All the input signals and output current are calibrated within the specified accuracy at factory. Further custom input and output signal adjustment can be recalibrated with TT Configurator software.
Page 2
The Configurable parameters are:
1. Input signal type: Various input signal type can be selected among the available options.
2. Unit: Select the unit (C or F) of temperature measurement.
For linear input (voltage or current), it doesnt effect the measurement.
3. Measuring range: Defines the lowest and highest value of measuring range. Within the range, the transmitter will convert input signals into an scalable 4 to 20mA analogue output signal.
4. Output direction: Defines the scalable analogue output signal to be 4 to 20mA or 20 to 4mA.
5. Fault signal on sensor break: Defines the output signal to be (1) Downscale (<4mA).
(2) upscale (>20mA).
(3) Cut-off. Limit the output signal within the output range when the input is out of measuring range.
6. Offset Correction: Allows to eliminate the offset error of measuring value.
7. 4~20mA Output Signal Calibration: Zero and Span adjustment of output signal. A power source shoule be connected as Figure 6.
8. Measuring value: Read the measuring value from transmitter continually.
9. Device information: Indicate the device model, firmware version, series number and communication status.
URC-1020 Interface cable
Texmate is an American manufacturer of high durability industrial grade panel meters, bar graphs, and transducers. Texmate's meters are frequently equipped with relays and various signal outputs for industrial automation applications and are known for their extremely long service life.